Stanley 10-779 Dynagrip Retractable Utility Knife -- The Stanley Dynagrip Retractable Utility Knife starts sharper and stay sharper than standard heavy-duty blades. This knife features a cushion grip surface for comfort even in extreme temperatures. A slip-resistant grip prevents slipping even on angled surfaces. The 5-5/8-inch handle has a patented interlocking nose to secure the blade. Furnished with three No. 11-921 utility blades, this utility knife comes with Stanley's limited lifetime warranty. Everyone knows the importance of the right tool for the job. Stanley's "Application Specific Blades" are designed with unique features for cutting drywall, roofing shingles and paper. Each blade is constructed of carbon alloy steel. With Stanley's patented S3 Technology, paper blades start sharper and stay sharper, roofing blades are stronger, and drywall and paper blades deliver more cuts per blade. The entire line provides better performance than standard heavy duty blades. View the comparison chart to choose the Stanley blade that is right for you. Product Description Utility Knife, Retractable, Blade Type Utility, Blade Change Screw, Overall Length 6 In., Blade Material Carbon Steel, Handle Color Black/Yellow, Handle Material Steel/Rubber, Number of Blades Included 3, Tether Capable Tether Ready, Overall Width 3 In., Overall Thickness 7/8 In., Position 3, Handle Type Cushion Grip, Features Hang-Hole for Adding a Wrist Strap or Lanyard, Stores No Storage, Application General Purpose Features Mpn: 10-779 Country of manufacture: China Manufacturer: Stanley